CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2023	Nov. 30, 2022
Revenue:
Total revenue	$ 21,431	$ 14,815	$ 42,055	$ 25,486
Cost of revenue:
Total cost of revenue	10,473	6,904	21,116	13,094
Gross profit	10,958	7,911	20,939	12,392
Operating expenses:
Research and development	1,972	1,551	4,429	3,049
Selling, general and administrative	3,518	2,875	6,927	5,400
Total operating expenses	5,490	4,426	11,356	8,449
Income from operations	5,468	3,485	9,583	3,943
Interest income, net	631	263	1,212	384
Other income (expense), net	10	(5)	4	19
Income before provision for income taxes	6,109	3,743	10,799	4,346
Provision for income taxes	20	18	36	32
Net income	$ 6,089	$ 3,725	$ 10,763	$ 4,314
Net income per share:
Basic	$ 0.21	$ 0.14	$ 0.37	$ 0.16
Diluted	$ 0.20	$ 0.13	$ 0.36	$ 0.15
Shares used in per share calculations:
Basic	28,801	27,579	28,725	27,410
Diluted	29,769	29,080	29,700	28,934
Product [Member]
Revenue:
Total revenue	$ 19,837	$ 14,007	$ 39,194	$ 23,595
Cost of revenue:
Total cost of revenue	9,707	6,497	19,626	12,011
Services [Member]
Revenue:
Total revenue	1,594	808	2,861	1,891
Cost of revenue:
Total cost of revenue	$ 766	$ 407	$ 1,490	$ 1,083